中文摘要：

以纳米二氧化硅为载体,4-甲基二苯并噻吩为模板,4-乙烯基吡啶为功能单体,通过表面分子印迹法制备纳米二氧化硅表面4-甲基二苯并噻吩印迹聚合物。利用红外光谱和氮气吸附对其进行表征,同时采用静态吸附实验考察该聚合物的吸附性能。研究结果表明：在载体表面合成了印迹聚合物,其吸附量远大于非印迹聚合物的吸附量,前者吸附动力学符合pseudo-first-order model,后者符合pseudo-first-order model和pseudo-second-ordermodel。印迹聚合物的吸附等温线满足Freundich等温吸附方程,属于多分子层吸附;与结构类似的二苯并噻吩和4,6-二甲基二苯并噻吩相比,印迹聚合物对模板4-甲基二苯并噻吩显示了特异的识别选择性与优良的结合亲和性;此外,印迹聚合物还能循环再生利用。

英文摘要：

A new molecular imprinted polymer（MIP） material was synthesized by surface imprinting technique using 4-methyldibenzothiophene（4-MDBT） as the template,4-vinylpyridine（4-VP） as the functional monomer and nano-SiO2 as the supporter.The prepared material was characterized by Fourier transform infrared（FT-IR） and nitrogen adsorption.Batch static adsorption experiments were adopted to study the adsorption properties.The results show that MIP has a higher adsorption capacity than non-imprinted polymer（NIP）.The overall adsorption data of MIP are best described by the pseudo second-order model,while the data of NIP exhibite good linear relationship with the pseudo-first-order and pseudo-second-order models.Moreover,MIP has better applicability for the Freundlich isotherm equation,indicating multi-molecular layers adsorption for MIP.MIP also shows good selectivity for template 4-MDBT over competitive compounds.In addition,MIP can be regenerated and reused.